Swapping out Generators and Demands

Hello,

I wanted to reach back out and ask if it is possible to swap out the current ENET39 generators and demands for my own CO locations?

Furthermore, if I wanted to add generators and demands, what key parameters should I watch out for? I was made aware to NOT change or add any nodes to the system, but if I did add generators that are swapped out for ENET39 generators, can I add them and connect them to the closest node without any consequences to the transmission congestion?

Lastly, I was advised not to change any parameters related to the transformers or transmission lines (FromName, ToName, XXDEF). However, I noticed that when I change the node’s name (to match an existing CO facility), it’ll also change the line’s FromName and ToName variables. This causes the scenario to work improperly, but I’d like to try to keep that functionality the same. Therefore, how would I go about modeling CO’s system without actually affecting any of the lines’ parameters?

Thank you,

Joshua

Hi @jramirezmalerv

Thank you for your question! I’m sorry to hear you’ve been unable to change the objects/properties in your model. What have you tried so far? This information will help me point you in the right direction.

As far as which properties you should watch out for, in the “Electric Objects” section of the documentation you can select the “DCUCOPF” tab to filter for only the properties that are relevant for a Production Cost Model. If you have specific questions after reading the property descriptions in the documentation please let us know!

With respect to adding new generators, yes you can add them at whatever Node you want. Just be mindful of the potential for transmission congestion to affect your results! Regarding your question about the “closest” Node, I think you are still misunderstanding what it means to have a representative model of a power system. The IEEE 39-bus system is a fictitious power system for the purpose of test studies. Any physical locations prescribed to the nodes are purely suggestive and therefore it is non-sensical to say which of them are “closest” to a real power generator in Colorado for which you have lat/long coordinates. If you are still confused about this, I recommend reaching out to your instructor during his office hours because this is a question that is outside the scope of how to use SAInt to model electricity markets.

You’re right that if you change the Name property of a Node, the rest of the objects will respond accordingly. This is a good thing! If a Line is connected to the ALBANY_NY Node and you change the name of that Node to be CU_ENGINEERING_CENTER, all the Lines connected to ALBANY_NY will have their connectivity properties (FromName, ToName) updated automatically so that the scenario does work properly. Did you notice something in your results that made you think the scenario was no longer working properly after you changed the name of a Node? Did you change anything else? The important thing is you should not change which nodes the lines are connected to. The object “Names” are just labels, after all.

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